Non-power rotation aeration disc for sewage treatment
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A technology of power rotation and sewage treatment, applied in biological water/sewage treatment, water/sludge/sewage treatment, sustainable biological treatment, etc., can solve problems such as easy blockage, small aeration range, large diffusion resistance, etc., to achieve Good diffusion, increased aeration area, beneficial to the effect of sewage treatment
Pending Publication Date: 2019-04-19
浙江国千环境技术发展有限公司
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Abstract
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Problems solved by technology
The existing microporous aeration discs have disadvantages such as easy blockage, small aeration range, and large diffusion resistance.
Method used
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Embodiment 1
[0049] Such as image 3 , the first ventilation holes 2311 are distributed on the entire side surface 231 of the aeration blade 23 .
[0050] Therefore, the unpowered rotating aeration disc used for sewage treatment only provides side air outlet, which can improve the rotating power and prevent the clogging of the air holes; in particular, the diameter of the first air holes 2311 gradually increases from the direction away from the hollow shaft 22 , can provide better power to the blade.
Embodiment 2
[0052] Such as Figure 4 , Figure 5 , the first ventilation holes 2311 are distributed on the side 231 of the aeration blade 23 away from the end of the hollow shaft 22 , and the second ventilation holes 2321 are evenly distributed on the entire top surface 232 or / and bottom surface of the aeration blade 23 .
[0053] Thus, the non-powered rotating aeration disc used for sewage treatment is aerated upwards or / and downwards through the second air holes 2321 on the top surface 232 or / and bottom surface, and provided by the first air holes 2311 on the side 231. Rotational power.
[0054] Such as image 3 , Figure 4 , Figure 5 , Figure 6 , the top surface 232 of the aeration blade 23 is inclined from top to bottom in the direction away from the hollow shaft 22 .
[0055] As a result, when debris falls from above to the top surface 232 , it is easier to slide down from the inclined surface, which can better prevent the second air hole 2321 from being blocked.
Embodiment 3
[0057] Such as Figure 6 , the hollow transition pipes 21 are connected at both ends of the air pipe 1, and the hollow transition pipes 21 at both ends are respectively connected with two air pipes 1.
[0058] Therefore, if more aeration volume is desired, the hollow transition pipe 21 and the ventilation pipe 1 can be installed at the upper and lower ends, which is especially suitable for the case where multiple sets of aeration blades 23 are arranged in the axial direction of the hollow rotating shaft 22 .
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Abstract
The invention relates to a non-power rotation aeration disc for sewage treatment. The non-power rotation aeration disc comprises a ventilation pipe and aeration disc assemblies installed on the ventilation pipe; each aeration disc assembly comprises a hollow transition pipe, a hollow rotation shaft and aeration blades, each hollow rotation shaft is matched with the corresponding hollow transitionpipe and communicated with an inner hole of the ventilation pipe and has rotation action, and the aeration blades are connected to the periphery of each hollow rotation shaft. According to the non-power rotation aeration disc for sewage treatment, the hollow transition pipes are adopted for being connected with the ventilation pipe, the hollow rotation shafts are adopted for being cooperatively and rotatably connected with the hollow transition pipes, the aeration blades are connected to the hollow rotation shafts, through gas outlet of the side faces and top faces of the aeration blades, theaeration disc can rotate without power, gas can be better dispersed, the aeration area is increased, and after rotation, the situation can be avoided that since impurities such as sludge are accumulated, micropores are blocked; in addition, the aeration blades rotate in water so that the gas can be better dispersed in the water, the oxygen content of the water is higher, through rotation of the blades, convenience is provided for evenly mixing active sludge in the sewage treatment process, and sewage treatment is well achieved.
Description
technical field [0001] The invention relates to the field of microporous aeration discs for sewage treatment, in particular to a non-powered rotating aeration disc for sewage treatment. Background technique [0002] Microporous aeration disc is a typical micro-bubble air diffusion device. The diffusion disc is mainly made of microporous materials such as ceramics, titanium powder, alumina, silicon oxide and nylon. The diameter of the bubbles produced is less than 2mm. It has a high utilization rate and is often installed in an assembled form. It is widely used in biochemical oxidation tanks and air flotation tanks in wastewater treatment processes. It is especially suitable for urban sewage and large-scale factory new expansion and old aeration tank renovation, and the aeration tank can run intermittently. The existing microporous aeration disc has disadvantages such as easy blockage, small aeration range, and large diffusion resistance. Contents of the invention [0003]...
Claims
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Application Information
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